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I know use System.exit(0) can end a java program, for instance, if I have a JFrame window, it will close and end the program, but I wonder how many other ways, can it be closed and the program be ended ? Including when an error occurs, will the program be shut down and the JFrame be closed ?
One other way the Java program ends is when the last statement in the java code is executed.
Also when java.lang.OutOfMemory error occurs, the program terminates abnormally. This occurs when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.